func main()
	var t: int :: cui@inputInt()
	for(1, t)
		var n: int :: cui@inputInt()
		var ans: int :: (10.0 ^ lib@floor(lib@log(10.0, (n + 1) $ float) + 1.0) + 0.1) $ int - n - 1
		do cui@print("\{ans}\n")
	end for
end func